Telephony Object

Made:
unknown place
Telephony Object

Telephony Object
Science Museum Group
© The Board of Trustees of the Science Musuem

Two high frequency, air-spaced, copper-shiethed objects relating to telephony/telegraphy.

Details

Category:
Telecommunications
Object Number:
YINH559
Materials:
copper (metal), paper (fibre product) and metal (unknown)
Measurements:
overall: 32 mm x 300 mm x 52 mm,
type:
telephony cable